ECAR
Fact Sheet for Oregon
Wastewater
Discharges
Regulations
Self-Audit Checklist
Best Management Practices
Contacts
Related ECAR Fact Sheets
Other Relevant Resources
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The
following fact sheet was prepared by the ECAR Center staff. Once
prepared, each ECAR Center fact sheet undergoes a review process
with the applicable state environmental agency(ies). You can check
on the status of the review process here.
Please read the disclaimer on the status page. While we have tried
to present a summary of the essential information on this topic,
you should be aware that other items, such as local regulations,
may apply to you.
What You Need to Know
Vehicle
salvage businesses generate wastewater during daily operations.
Sources of wastewater include hot tank solutions and parts washers.
These wastewaters may contain metals that can cause them to be hazardous
or they may be corrosive hazardous wastes. They may also contain
oils, greases, solvents and detergents.
You
will almost certainly need separate permits both for stormwater
runoff (see the ECAR Stormwater fact sheet)
and for any industrial wastewater that you generate. This
page will give you an overview of how to handle your industrial
wastewater.
Regulations
Facilities
that industrial wastewater or wash water to a sanitary sewer (city,
county, or district sewage treatment plant or wastewater treatment
plant) are not directly regulated by the Oregon Department of Environmental
Quality (DEQ). In this situation, the Department requires the wastewater
treatment plant to obtain a National Pollutant Discharge Elimination
System (NPDES) or Water Pollution Control Facilities (WPCF) permit.
The treatment plant is then required to regulate the discharges
into their system and to maintain compliance with their DEQ permit.
If you would like to discharge to the sanitary sewer, please contact
the local sanitary authority for more information. A permit and
fee may be required from the local authority. Also, if you are already
discharging wastewater or wash water to the sanitary system, you
are required to notify your local sanitary authority; no notification
is required if you are only discharging sewage.
Pretreatment. You may
need to pretreat the wastewater in some way before putting it in
the sewer. For example, an oil/water separator or treatment for
a particular contaminant may be required. The used oil collected
during pretreatment may be eligible for recycling with your used oil.
Hazardous Waste.
In areas where a wastewater treatment facility is not available
or cannot take your water, you must carefully manage the wastewater
from your shop. If the wastewater is hazardous, you must manage
it by sending it to a permitted hazardous waste facility. See the
ECAR Hazardous Waste Fact Sheet. If your wastewater
is not hazardous, you can haul it to an approved wastewater treatment
plant if the plant is willing to accept it.
Disposal. If you cannot connect your shop
to a wastewater treatment plant, you may be able to discharge domestic
wastewater (water from restroom or kitchen facilities) to a septic
system. You will still need to collect any industrial wastewater
(water from parts washers, floor cleaning, etc.) and manage it as
described above.
*Do
not put your industrial wastewater down the drain unless you are
connected to a sewer and treatment plant and have permission from
the plant.
Discharges to Waters of the State. If your facility discharges industrial wastewater via a “point
source” (such as a pipe, etc.) directly to waters of Oregon, you
are required to obtain a National Pollutant Discharge Elimination
System (NPDES) permit. The Oregon Department of Environmental Quality
(DEQ) issues these permits. Waters of state include (but are not
limited to) ground water, storm drains, rivers, streams, lakes and
ditches. Automotive recyclers must apply for the NPDES General Permit
for Industrial and Other Sites.
Links
to the Regulations and Forms. Use the following links to view the regulations and permit forms pertaining
to wastewater.
NPDES Industrial General
Permit for Industrial and Other Sites
Water Pollution
Control Facilities Permit
Federal Safe Drinking Water
Act Requirements
Self-Audit
Checklist
When
an inspector comes to your facility, there are certain things he
or she checks to see if you are in compliance with environmental
regulations. It makes good sense for you to perform a "self-audit"
and catch and correct problems before they result in penalties.
Also, there are some compliance incentives associated with self-audits
(see Audit
Policy Page).
Use
the following list to audit your wastewater management activities.
- Does your facility discharge process wastewater?
Are the discharges authorized by a permit? Check all uses of water and
steam within the industrial areas of your facility. Determine
where wastewater is generated and discharged. You must have a
NPDES permit to discharge to surface waters and may need a permit
to discharge to your local sewer authority.
- Have you performed the necessary pretreatment? If you are discharging to a sewer system/treatment plant,
you likely will have to perform pretreatment of your waste. Check
with your local sewer authority.
- Is oil or solvent discharged to the sewer? Federal and state laws prohibit
the discharge of oil or flammable solvents to the sewer system.
These are regulated wastes that must be properly disposed of.
Best
Management Practices (BMPs)
Most
regulations tell you what you have to do to be in compliance, but
they don’t explain how to do it. That’s where "best management
practices" come into play. BMPs are proven methods that
help you to get into compliance and stay there. The following BMPs
are recommended for wastewater management.
- Limit water use and the volume of water discharged
through conservation methods and by reusing water whenever possible.
- Train employees to use water efficiently.
- Don’t use water for cleaning floors and equipment
unless absolutely necessary. Use dry cleanup methods for spills.
- Post signs at all floor drains and sinks in industrial
areas of your facility to discourage employees from using the
drains to dispose of oil, other vehicle fluids, solvent, paint
or similar liquids. Review these rules with your employees.
- Use only non-toxic soaps to clean floors and
vehicles instead of hazardous materials.
- If you have floor drains at your facility that
are not in use, consider having them capped or plugged to prevent
misuse or accidental discharges.
- Prevent drips and spills from reaching the floor.
- Check your floor drains and make certain you
know where they discharge.
- Setup and use a maintenance schedule for inspection
and cleaning of floor drains, oil/water separators, traps, etc.
- Never have floor drains where hazardous materials
are stored.
- If your wastewater is nonhazardous, you may want
to purchase evaporating equipment to evaporate your wastewater.
It should be noted that evaporators may require an air permit
or registration, and evaporator bottoms may be considered a hazardous
waste.
- Don’t use degreaser solvents to clean engines.
Most engine degreasers are hazardous and should not be discharged
to a POTW. Even if you use nonhazardous degreasers, the oil and
grease concentration in the spent degreaser may exceed the limit
allowed by your sewer authority.
Contacts
- For more information, contact the Oregon Department
of Environmental Quality (DEQ) at 503-229-5696
or 800-452-4011 (toll-free in Oregon).
- To report a spill or leak, contact the Oregon Emergency Response System (OERS) at 800-452-0311.
- To report an environmental incident or complaint, contact
the nearest DEQ Regional Office.
Related
ECAR Fact Sheets
- Stormwater
- Septic Tanks and Disposal Wells
Other
Relevant Resources
- Oregon DEQ Website Frequently
Asked Wastewater Questions
- Oregon Petroleum
Contaminated Wastewater Management Policy
- Stormwater Pollution Control Plan Check List for 1200-Z and 1200-COLS Permits PDF
- OR Vehicle Dismantlers webpage
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